All vulnerabilities

Servers and applications

CVE-2025-25253

An Improper Validation of Certificate with Host Mismatch vulnerability [CWE-297] in FortiProxy version 7.6.1 and below, version 7.4.8 and below, 7.2 all versions, 7.0 all versions and FortiOS version 7.6.2 and below, version 7.4.8 and below, 7.2 all versions, 7.0 all versions ZTNA proxy may allow an unauthenticated attacker in a man-in-the middle position to intercept and tamper with connections…

Severity
High 7.5
Published
14 Oct 2025
Last changed
18 Oct 2026
Added to UpHeron
1 Nov 2026
Fixed in
7.4.9, 7.6.2, 7.6.3
Sources
NVD

Affected software

SoftwareAffected versions
Fortinet FortiProxyServers and applications · cpe:a:fortinet:fortiproxy
  • From 7.0.0 before 7.4.9
  • From 7.6.0 before 7.6.2
Fortinet FortiOSServers and applications · cpe:o:fortinet:fortios
  • From 7.0.0 before 7.4.9
  • From 7.6.0 before 7.6.3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-25253
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-25253